package com.ihemou.common.security.utils;

import cn.dev33.satoken.session.SaSession;
import cn.dev33.satoken.stp.StpUtil;
import com.ihemou.common.core.constant.CacheConstants;
import com.ihemou.common.core.utils.ServletUtils;
import com.ihemou.common.core.utils.StringUtils;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import javax.servlet.http.HttpServletRequest;

/**
 * 权限获取工具类
 *
 * @author ruoyi
 */
public class SecurityUtils {
    /**
     * 获取用户
     */
    public static String getUsername() {
//        String username = ServletUtils.getRequest().getHeader(CacheConstants.DETAILS_USERNAME);
        try {
            SaSession saSession = StpUtil.getTokenSession();
            if (saSession != null) {
                Object username = saSession.get(CacheConstants.DETAILS_USERNAME);
                if (username != null) {
                    return ServletUtils.urlDecode(username.toString());
                } else {
                    return "";
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }
        return "";
    }

    /**
     * 获取用户ID
     */
    public static String getUserId() {
        SaSession saSession = StpUtil.getTokenSession();
        Object userId = saSession.get(CacheConstants.DETAILS_USER_ID);
        if (userId != null) {
            return userId.toString();
        } else {
            return "";
        }
//        return ServletUtils.getRequest().getHeader(CacheConstants.DETAILS_USER_ID);
    }

    /**
     * 获取请求token
     */
    public static String getToken() {
        return getToken(ServletUtils.getRequest());
    }

    /**
     * 根据request获取请求token
     */
    public static String getToken(HttpServletRequest request) {
        String token = request.getHeader(CacheConstants.TOKEN_AUTHORIZATION);
        return replaceTokenPrefix(token);
    }
    /**
     * 裁剪token前缀
     */
    public static String replaceTokenPrefix(String token)
    {
        // 如果前端设置了令牌前缀，则裁剪掉前缀
        if (StringUtils.isNotEmpty(token) && token.startsWith(CacheConstants.TOKEN_PREFIX))
        {
            token = token.replaceFirst(CacheConstants.TOKEN_PREFIX, "");
        }
        return token;
    }
    /**
     * 是否为管理员
     *
     * @param userId 用户ID
     * @return 结果
     */
    public static boolean isAdmin(String userId) {
        return userId != null && "SUPERADMIN".equals(userId);
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword     真实密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }
}
